When Warnecke and Colleagues Were Looking for Genes That Are

When Warnecke and colleagues were looking for genes that are involved in the digestion of lignocellulose by termites, they needed genes __________.

A) from the sequences of the termite genome
B) of the primary strain of bacteria that inhabit the termites' bodies
C) for the bacterial enzymes found in the lignocellulose-digesting part of the gut
D) for the long-term maintenance of lignin-digesting microbial organisms
E) that can be expressed in a lignocellulose-rich environment